Finding the Third Proportional to 143,941.50 and 304,492.50

Step by Step Solution

1. Step 1: Write the proportion equation
   143,941.50 : 304,492.50 = 304,492.50 : x
2. Step 2: Convert to fraction form
   143,941.50/304,492.50 = 304,492.50/x
3. Step 3: Cross multiply
   143,941.50x = 304,492.50 × 304,492.50
4. Step 4: Simplify right side
   143,941.50x = 92,715,682,556.25
5. Step 5: Solve for x
   x = 92,715,682,556.25/143,941.50
6. Step 6: Final answer
   x = 644,120.58